Development of Fe-Ga-Al based alloys with large magnetostriction and high strength by precipitation hardening of the dispersed carbides

Toshiya Takahashi, Teiko Okazaki, Yasubumi Furuya

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

(Feo80Ga0.15Al0.05)99X 0.5C0.5 [at.%] (X=Zr, Nb and Mo) alloys were developed in order to enhance the magnetostriction as well as strength by carbide reaction X.-C. Carbide precipitation phases of XC were observed by XRD and laser-microscope in the arc-melted alloys. As a result, (Feo80Ga 0.15Al0.05)99Zr0.5C0.5 alloys showed maximum magnetostriction λmax=134ppm and its tensile strength σB=832MPa. These alloys showed a transgranular fracture. It will be considered to cause the increase of strength due to the precipitation of carbide. Before now, the polycrystalline Galfenol with such a high tensile strength more over 800MPa as well as large magnetostriction over 100 ppm has not yet been reported.

本文言語English
ホスト出版物のタイトルMaterials Research Society Symposium Proceedings - Materials and Devices for Smart Systems III
ページ175-180
ページ数6
出版ステータスPublished - 2009
外部発表はい
イベントMaterials and Devices for Smart Systems III - 2008 MRS Fall Meeting - Boston, MA, United States
継続期間: 2008 12月 12008 12月 4

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1129
ISSN(印刷版)0272-9172

Other

OtherMaterials and Devices for Smart Systems III - 2008 MRS Fall Meeting
国/地域United States
CityBoston, MA
Period08/12/108/12/4

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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